diff options
Diffstat (limited to 'arch/mips/sibyte/bcm1480/irq.c')
-rw-r--r-- | arch/mips/sibyte/bcm1480/irq.c | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/arch/mips/sibyte/bcm1480/irq.c b/arch/mips/sibyte/bcm1480/irq.c index db372a0f106d..a35818ed4263 100644 --- a/arch/mips/sibyte/bcm1480/irq.c +++ b/arch/mips/sibyte/bcm1480/irq.c | |||
@@ -57,30 +57,6 @@ static void bcm1480_set_affinity(unsigned int irq, cpumask_t mask); | |||
57 | extern unsigned long ht_eoi_space; | 57 | extern unsigned long ht_eoi_space; |
58 | #endif | 58 | #endif |
59 | 59 | ||
60 | #ifdef CONFIG_KGDB | ||
61 | #include <asm/gdb-stub.h> | ||
62 | extern void breakpoint(void); | ||
63 | static int kgdb_irq; | ||
64 | #ifdef CONFIG_GDB_CONSOLE | ||
65 | extern void register_gdb_console(void); | ||
66 | #endif | ||
67 | |||
68 | /* kgdb is on when configured. Pass "nokgdb" kernel arg to turn it off */ | ||
69 | static int kgdb_flag = 1; | ||
70 | static int __init nokgdb(char *str) | ||
71 | { | ||
72 | kgdb_flag = 0; | ||
73 | return 1; | ||
74 | } | ||
75 | __setup("nokgdb", nokgdb); | ||
76 | |||
77 | /* Default to UART1 */ | ||
78 | int kgdb_port = 1; | ||
79 | #ifdef CONFIG_SERIAL_SB1250_DUART | ||
80 | extern char sb1250_duart_present[]; | ||
81 | #endif | ||
82 | #endif | ||
83 | |||
84 | static struct irq_chip bcm1480_irq_type = { | 60 | static struct irq_chip bcm1480_irq_type = { |
85 | .name = "BCM1480-IMR", | 61 | .name = "BCM1480-IMR", |
86 | .ack = ack_bcm1480_irq, | 62 | .ack = ack_bcm1480_irq, |
@@ -355,61 +331,10 @@ void __init arch_init_irq(void) | |||
355 | * does its own management of IP7. | 331 | * does its own management of IP7. |
356 | */ | 332 | */ |
357 | 333 | ||
358 | #ifdef CONFIG_KGDB | ||
359 | imask |= STATUSF_IP6; | ||
360 | #endif | ||
361 | /* Enable necessary IPs, disable the rest */ | 334 | /* Enable necessary IPs, disable the rest */ |
362 | change_c0_status(ST0_IM, imask); | 335 | change_c0_status(ST0_IM, imask); |
363 | |||
364 | #ifdef CONFIG_KGDB | ||
365 | if (kgdb_flag) { | ||
366 | kgdb_irq = K_BCM1480_INT_UART_0 + kgdb_port; | ||
367 | |||
368 | #ifdef CONFIG_SERIAL_SB1250_DUART | ||
369 | sb1250_duart_present[kgdb_port] = 0; | ||
370 | #endif | ||
371 | /* Setup uart 1 settings, mapper */ | ||
372 | /* QQQ FIXME */ | ||
373 | __raw_writeq(M_DUART_IMR_BRK, IOADDR(A_DUART_IMRREG(kgdb_port))); | ||
374 | |||
375 | __raw_writeq(IMR_IP6_VAL, | ||
376 | IOADDR(A_BCM1480_IMR_REGISTER(0, R_BCM1480_IMR_INTERRUPT_MAP_BASE_H) + | ||
377 | (kgdb_irq << 3))); | ||
378 | bcm1480_unmask_irq(0, kgdb_irq); | ||
379 | |||
380 | #ifdef CONFIG_GDB_CONSOLE | ||
381 | register_gdb_console(); | ||
382 | #endif | ||
383 | printk("Waiting for GDB on UART port %d\n", kgdb_port); | ||
384 | set_debug_traps(); | ||
385 | breakpoint(); | ||
386 | } | ||
387 | #endif | ||
388 | } | ||
389 | |||
390 | #ifdef CONFIG_KGDB | ||
391 | |||
392 | #include <linux/delay.h> | ||
393 | |||
394 | #define duart_out(reg, val) csr_out32(val, IOADDR(A_DUART_CHANREG(kgdb_port, reg))) | ||
395 | #define duart_in(reg) csr_in32(IOADDR(A_DUART_CHANREG(kgdb_port, reg))) | ||
396 | |||
397 | static void bcm1480_kgdb_interrupt(void) | ||
398 | { | ||
399 | /* | ||
400 | * Clear break-change status (allow some time for the remote | ||
401 | * host to stop the break, since we would see another | ||
402 | * interrupt on the end-of-break too) | ||
403 | */ | ||
404 | kstat.irqs[smp_processor_id()][kgdb_irq]++; | ||
405 | mdelay(500); | ||
406 | duart_out(R_DUART_CMD, V_DUART_MISC_CMD_RESET_BREAK_INT | | ||
407 | M_DUART_RX_EN | M_DUART_TX_EN); | ||
408 | set_async_breakpoint(&get_irq_regs()->cp0_epc); | ||
409 | } | 336 | } |
410 | 337 | ||
411 | #endif /* CONFIG_KGDB */ | ||
412 | |||
413 | extern void bcm1480_mailbox_interrupt(void); | 338 | extern void bcm1480_mailbox_interrupt(void); |
414 | 339 | ||
415 | static inline void dispatch_ip2(void) | 340 | static inline void dispatch_ip2(void) |
@@ -462,11 +387,6 @@ asmlinkage void plat_irq_dispatch(void) | |||
462 | bcm1480_mailbox_interrupt(); | 387 | bcm1480_mailbox_interrupt(); |
463 | #endif | 388 | #endif |
464 | 389 | ||
465 | #ifdef CONFIG_KGDB | ||
466 | else if (pending & CAUSEF_IP6) | ||
467 | bcm1480_kgdb_interrupt(); /* KGDB (uart 1) */ | ||
468 | #endif | ||
469 | |||
470 | else if (pending & CAUSEF_IP2) | 390 | else if (pending & CAUSEF_IP2) |
471 | dispatch_ip2(); | 391 | dispatch_ip2(); |
472 | } | 392 | } |